Goofy questions

[Nils Lid Hjort]

I've been asked to write a short article on Super-Goof. 
A couple of questions, to the knowledgeable out there.
I am grateful for answers & pointers. 

1. In which story (or stories?) is it made clear that 
   Goofy (not Super-Goof) has an uncanny _sense of smelling_?
   I think it's a Paul Murry from around 1960. 

2. I understand that even the most clever detective of 
   Duckburg, who is a personal friend of S.G., has not
   found S.G.'s secret identity. Are there S-G stories 
   where someone, Mickey or others, at least are close to,
   or perhaps interested in, Super-Goof's identity? 

Nils Lid Hjort